Roller-screen



J. MUGNO, JR. ROLLER SCREEN.

APPLICATION FILED DEC. 6. 1919.

Batente Mar. 29, 192i 2 SHEETS-SHEET l- 1. MUGNO, JR.

ROLLER SCREEN.

APPLICATIoN FILED DEC.6. 1919.

Faten'd Mar., 29, 1921.

2 SHEETS-SHEE] 2.

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TTU/MIE YS Be it known that I, JOSEPH `citizen ofthe United States, and aresidentv nmrnnsrnrns agritur ersten.

aosnrnifmeNO, Jn., or BROOKLYN, New YORK, n'ssreNOn, BY innsn'n nssreNMENas,

ro MODERN ROLLING wrNnOw. scnnnNcO., INc., or BROOKLYN, New. Yonx, n

CRPOIRTION 0F NEW YORK.

newness.,

To all whom it may' concern:

MUGNo,Jr., a

of the city of New York,-borough of Brookl n, in the county of Kings and State of ew York, have invented a new` and lming is a full, clear, and exact description,

The present invention relates tonew and iiseful improvements in window screens, and

it pertains more particularly to Iwindow screens of the rolling type. Heretofore in screens of this charactergreat difficulty has been experienced in preventing the cross bar of these screens from sagging or dropping l'away from the windowy sash, and it is the primary object of this inventionto so construct arolling screen that the cross bar thereofv will remain in the position in which it is released and without sagging.

lit is a further Object of the invention to so construct a screenof this character that the roll is at all times under sufficient tension to cause the screen to stretch and lie perfectly dat throughout the window space.

lit isa further object ofthe invention to construct a fdevice of this` character so that its installation is greatly facilitated, provision being made for thelinstallation screws in a new and novel manner.

With ,the above and other objects in view,

4 reference' is had to the accompanying drawings, in which- Figure 1 is a view in elevation of a win- 'dow showing the improved screen in posi tion thereon;

Fig.2is a horizontal sectional view talre'n4 .on theline 2 2 ofv Fig. 1;

Fi'. 3`is a transverse sectional view on Fig. e is a transverse sectional view on the l "line e-e of Fig. .2;.` J

Fig. 5 isa vertical the line 5 5 of Fig. 1;

Fig. 6 is a fragmentary vertical sectional- Fig. 10 is a detail'sectional View Itaken on the line '1 0- 10 Of Fig. t;

sectional view taken on` nOLLnn-sennnN. t

Specication of Letters Patent. y Patmtd .Mam-i, 2g," F9211. application filed December c, 1919. serial No. 342,909.

Fig. 11 is a transverse sectional-view taken ings, the reference character 15 designates a windowl frame, and 16 designates the I `screen, the upper end ofwhich is provided proved Roller-Screen, of which the followin guide members 18, which guide members `also receivethe side edges of the screen 16.

with a cross bar 17, the ends of which slide These guide members 18 each comprise an outer side member 20, which is provided on lits inner edge with a right-angular extension 21, and on its outer edge with a right-angular vextension 22. The reference character 28 designates an inner right-angular member, which is provided with an extension wall 2li adapted to engage the right-angular member 22 of the member 20. The members 20 and 23 are retained in spaced" relation by means of an internally screw-thread ed member 25, which-is adapted to be secured to the member 20, as indicated by the reference character 26. Threaded into` the.

member 23, is a screw-threaded member 27,

which is provided with an annular liange 28, y

adapted to engage the member 28 and clamp it between theflange and the member 25.

After this vhas been accomplished, the instal lation screw 29 is passed through the mem .bers 25 and 27, to secure theguides in place within the window' frame.'

1t is to be understood that the foregoing described structure is duplicated near the bottom* -of the guides, land that one of the guides is employed on each of the opposite sides of the window and extends throughout the length of window sash, as shown in lower ends, is a housing 30,v and said housingl comprises 'a bottom wall t31, a curved front wall 32, and a rear wall 33, these walls being secured to the'guide members 18 by solder Or in any other desired manner:` This housing 30 is employed for inclosing the screen when rolled upon a'hollow metallic roller 3d. i,

Rigidly secured yto each of the walls 21 of` IF1 1. y I ecured tothe guide members 18 at their v the guide members 18, by meansof pintles or the like 35, are bearingsv 36. rlhe mem bers 23 of the guide members 18 are cut out, as at- 37, and mountedin said cut-out portions 87 and engaging the bearings 36, are sprocket'wheels 38, the hub portion of each of which is extended as at 39, and reduced as at 40. rlhe hub portions 89 of the sprocket wheels 38 .are adapted to receive the open ends of the metallic roller 34 to `form the means by which said roller is mounted within the housing 36. The reference character 45 designates a squared spindle, which spindle extends through the hub portions of the sprocket wheels 88, each or' which is provided with a squared openingwhich receives said spindle in a manner to cause it to rotate with the sprocket wheels as they in turn are rotated in a manner to be hereinafter described.

Secured to the tubular roller 34, by means of a'set screw 46, is a washer 47 ,and said washer 47 is provided with a centrally disposed square opening 43, which is adapted to receive the spindle 1n such a manner that as the-spindle is rotated through the medium of the sprockets 88, said roller will likewisebe rotated through the medium ot the washer 47 and the screw 46. Secured to the squared spindle 45, near its opposite end, is a washer 48, and said washer 48 is provided with a circular opening 42', in which the spindle 45 is free to rotate. Connected as at 49, to the washer 47, and as at 56, to the washer 48, is a coil spring 51, which serves to provide the necessary tension to maintain the wire fabric of the screen at all times tightly stretched in such a manner as to prevent sagging. i

Secured in each' of the guide members near its upper end, is a pulley 55, said pulley freely rotating about a bearing 56, which is secured tothe guide members by means ot' a screw or the like 57, which operates to adjustably secure the pulley 55 in place by means of theelongated slot 58 in which lthe screw 57 engages. One of these pulleys is mounted in each of the guides 18, and passing around said pulleys and their respective sprocket wheels 38, is a steel tape 60. As best seen in Fig. 6, the steel tape 60 is provided with openings 61, and said openings are adapted to receive the teeth of the sprockets '88. lThe openings 61 in the tape 6() extend throughout only a portion of the length of said tape, since it is not necessary to provide opening-s throughoutthe whole length thereof, for the reason that only a portion of said tape passes over the sprocket wheels 38 in the travel of the screen from one extreme to the other' of the windowYV 4which is bent backwardly upon itself as indicated at 65, and provided with a screw*` threaded opening' 66. The ends of the tape 60 are secured to the shuttle by looping them revaeee the upper end of which is bent in S5 Jform, 4

as indicated by the reference characters 8l and 82. rlhe reference character 88 designates a right-angular member, one leg ot which is adapted to lie parallel to the portion of the cross bar 17. The screen 16 is placed exterior of the right-angular mem ber 83, and is. secured thereto by means ot the member 84, which is provided with a channel 86 to receive the leg of the rightangular member 83, as clearly shown in Fig. 9. rlhe free end of one ot' the legs ot' the channel member 86 is bent at right angles, as indicated by the reference character 90, and lies between the member 8() and one of the legs 81 of the S-shaped portion thereof, to secure the channel member in position. The reference character 92 designates a strip of pliable material, which is adapted to Vengage the window to form a tight joint between said window and the upper end of the'screen 16.

Y The heretofore mentioned T-shaped member 70 is secured between the Jfolds oi the screen 16, by means ot'a rivet 98, the rivet 98 also serving to retain a plate 94 in place at the ends of the cross bar 17, the channel Y member-86 and the Ileg 88 of the rightfrom the tubular roller 84, it being understood that the spring 51 is placed under a slight tension when the mechanism isv assembled. Upon continued rotation ot the roller 34, owing-to an unrolling of the screen contained thereon. the tension ofthe spring 51- increases. lVhen said tension reaches a predetermined point, the washer 48 will move aroundthe spindle 45, thus relieving the excess pressure of the spring 51. It as the screen is brought upwardly to a position where it engages ther roller rail oi the window sash, it is found that the Hexible stripl92 does not engage with the window sash throughout-its entire length. the said strip 92 may be adjusted b v moving either of the members 64 longitudinally ot' its respective shuttle by means ot the screw intense 68.. By this construction it is. apparent that the angular disposition of the cross bar 1'? maybevaried to meet requirements owing to a warping or distortion "of the window sash or trame. When the screen l@ is lowered by moving the cross bar. l? longitudiiially ot the window trame, the tension' of the spring 5l serves to wind the screen upon the roller 3a and maintain the same thereon.,

From the foregoing description, will be noted that the spring 5l is not placed under tension by a rolling or the screen 1G on the roller 34s The tension of the spring 5l is obtained through the medium of the steel. tapes 60 passing around lthe sprockets' 38', which sprockets in turn drive the squared spindle 45, and said spindle a5, through the medium ot the washer ai', which is secured to the'roller 3d, transmits the tension ot the spring 5l to the roller 3d.

The screen l@ is maintained in a tightly ,rolled condition onftlie roller 34 byvmeans oi the increased diameter of said roller as the screen rolls thereon, which together with the tension of the spring 5l, serves to maintain the screen' in a tightly rolled condition upon the` roller 3d, which serves as its carrier. l

By this construction it will be apparent that the present invention provides a rolling screen in which when the tensionjot the screen roller has reached a certain point, it is spent automatically, thus preventing said increase of tension in the spring roller as would cause the cross bar 1'? to drop away from the window when it is moved thereto. llurthermore, by so relieving the `tension ci the spring 5l and driving the same in the oppositedirection, when it is desired to wind the screen on the roller 3d, it will be seen that the screen is always y tightly wrapped around said roller.

l claim: I l. A roller screen comprising a plurality or guides, a transversely extending member movable longitudinally of said guides,tapes,

said tapes being connected to said transversely extendingmember, a ytension roller,

sprockets carried by said tension roller and engaging the said tapes, a spindle carried by said sprockets and connected to said tension roller, and a coil spring mountedvintegitudinally ot the shuttle member by said bolt, and means carried by the sliding member for attaching the' opposite end oi said tapes to their respective sliding members for adjusting the tension thereof.

fr. The combination with a roller screen 'having a'transversely extending operating member connected to its tree endet a shuttle member for adjusting said transversely extending inemben'and comprising a metal-1 lic body portion, and means for engaging the transverselyl extending member of' the screen, said means being movable `with respect to the body portion, whereby said transversely extending member may be angularly ady'usted, substantiall as described.

5. .d tension roller pomo sing a tubular member, a shalt tor supp ing said tubular member, a washer mounted within said tubular member and keyed thereto and having driving connection with said shaft, a second washer mounted internally of said tubular member and freely rotatable there in and on said shalt, and a coil spring connected at one end to said lined washer and at the other end to said loose washer whereby the loose washer will slip to relieve the tension et said springY when it reaches a predetermined point.

6. A tension roller for screens and the like comprising a roller, a spring contained within said roller, means tor positively connecting one end of said spring to the roller to' transmit the power oiC the spring to the to the opposite end of said spring wherelziy'l the power transmitted "from the spring to the roller is periodically relieved.

riorly of said roller and connected at one 7. lin a screen ot the roller type, a screen of its ends thereto, the other end ot said coil spring being connected to a member freely rotatable on the spindle connecting the sprockets and within thetension roller.

2. A tension roller for roller screens, comprising a tubular member, a plurality of spaced washers mounted interiorly oit said tubular member, means tor securing one of said washers to said tubular member, a coil spring connected at one of its ends to the washer secured to the tubular member and roller', a tension spring contained within said roller and adapted to transmit power thereto when the screen is `ui'irolled 'from -said roller, separate means tor causingsaid spring to transmit power to said roller when the screen is being wound upon said roller, and means for periodically relievin the tension of said spring when the rol er is being operated in either direction.

.iosnrn ivresse., n. 

